Speaker Damper Protrusions Reduce Excursion Weight
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Solution Overview
Problem
Conventional speakers, particularly full-range and mid-range speakers, face efficiency issues due to heavy excursion parts weight caused by the suspension holder, leading to reduced driving efficiency and increased distortion.
Innovation Solution
A speaker design featuring a frame with a magnetic circuit, a voice coil unit, a diaphragm coupled via a first edge to the frame and a voice coil unit, and a damper with an outer rim coupled to the frame via a second edge, which includes protrusions to suppress distortion and reduce excursion parts weight, improving driving efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a suspension holder firmly holds the diaphragm, then the diaphragm is securely supported, but the weight of the speaker excursion parts becomes heavy, reducing driving efficiency in full-range and mid-range speakers
Solution Approach 1:
The invention extracts and eliminates the suspension holder component from the speaker structure. By removing this unnecessary element and redistributing the support function to the edge structure and frame, the patent achieves both secure diaphragm support and reduced excursion parts weight, thereby improving driving efficiency without compromising reliability
Solution Approach 2:
The edge structure is designed to perform multiple functions simultaneously: it couples the diaphragm to the frame, provides structural support, and enables symmetric vertical excursion. This multi-functionality replaces the suspension holder's support role while adding weight reduction benefits
2Productivity
If the weight of excursion parts is reduced, then driving efficiency improves, but the structural strength and stability may be compromised
Solution Approach 1:
The patent employs composite material construction in the edge and frame structures, combining materials with different properties to achieve optimal strength-to-weight ratio. This allows the structure to maintain sufficient strength and stability while minimizing weight, thereby improving driving efficiency without compromising structural integrity
Solution Approach 2:
The support structure is segmented into multiple functional components (edge, frame, magnetic circuit) that work together to distribute loads. This segmentation allows each component to be optimized for its specific function while maintaining overall structural strength with reduced total weight
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The design effectively reduces distortion and enhances driving efficiency by distributing load symmetrically and maintaining linearity, making it suitable for full-range and mid-range speakers.
Implementation Method 1
a voice coil unit placed movably with respect to a magnetic gap provided to the magnetic circuit
Implementation Method 2
a damper placed on the magnetic circuit side with respect to the diaphragm, i.e. nearer to the magnetic circuit than the diaphragm
Data Source
AI summary
A speaker having smaller distortion and driven at higher efficiency is disclosed. The speaker includes a frame, a magnetic circuit supported by the frame, a voice coil unit placed movable with respect to magnetic gap provided to the magnetic circuit, a diaphragm of which outer rim is coupled to the frame via a first edge, and of which inner rim is coupled to the voice coil unit, and a damper placed on the magnetic circuit side with respect to the diaphragm, and which damper has an outer rim coupled to the frame and an inner rim coupled to the voice coil unit. The outer rim of the damper is coupled to the frame via a second edge, which includes a first protrusion protruding toward the diaphragm and a second protrusion protruding oppositely to the first protrusion.